{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760764",
    "entityType": "User",
    "nonce": "0x3a47a2cddc439ba3f6e4003e96d85a46eae1167b6e3859159de136b95f965c51",
    "signature": "0x8baeedff3b4bfee2a448f816b67423fddb09d6e2bad46d8c7a62a3d69074d7b329433ef1e78497ec3545f75f5d13491392c9f0a083b758983722d225e376811e1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}